Australian teenage sailor Jessica Watson says she has survived her toughest test yet on her round the world trip with her yacht being forced on its side four times by big waves and high winds in the Atlantic ocean.
Miss Watson's online blog says after experiencing her first knockdown, which is when the mast goes into the sea, she then had three more during an eight-hour storm on Saturday.
The ABC reports the winds were gusting up to 70 knots with a swell of up to 10 metres.
Miss Watson, who's attempting the record as the youngest to sail solo around the world, has now passed the 11,000 nautical mile mark in her boat, Ella's Pink Lady.
